ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,237, issued on Aug. 11, was assigned to HITACHI LTD. (Tokyo).
"In-wheel motor" was invented by Tetsuya Suto (Tokyo), Akeshi Takahashi (Tokyo) and Makoto Ito (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An in-wheel motor with improved driving force has a simplified cooling structure for the motor and a braking device. The in-wheel motor has a motor that transmits motive power to a wheel, at least a portion of the motor being disposed inside the wheel; a first cooling part and a second cooling part that cool a stator of the motor; and a braking device that applies braking to the wheel. The braking device 25 is formed from a brake disc that ro...